I have, and it is very good for high-gain distortion tones and gets close to nailing the Justin Chancellor sound. However I didn't find it to be to my taste or to really work for use within a Worship context.
It doesn't have clipping options, and as a result of the chosen clipping diodes (symmetrical silicon, I assume) the sound is very compressed. I prefer a far less compressed and more open sound which is why I have a preference for variants that allow for the use of LED's or the lifting of the clipping diodes from the circuit completely.
IMO, distortion should add texture without entirely taking over and transforming the tone of the bass. I feel this is particularly important within a worship context where we are switching distortion in and out of our signal chain at various points within a song to assist with dynamics. In other contexts/genres where it may be used as an always-on core tone or intended to fully transform the sound when switched on this is far less of a concern.